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shared_ptr to an array : should it be used?
...must be T[N] or T[]. So you may write
shared_ptr<int[]> sp(new int[10]);
From n4659, [util.smartptr.shared.const]
template<class Y> explicit shared_ptr(Y* p);
Requires: Y shall be a complete type. The expression delete[] p, when T is an array type, or delete p, when T is not...
Emacs: print key binding for a command or list all key bindings
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edited May 17 '10 at 23:43
answered May 16 '10 at 23:39
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Format floats with standard json module
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80
Note: This does not work in any recent version of Python.
Unfortunately, I believe you have to d...
How do I create directory if it doesn't exist to create a file?
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400
To Create
(new FileInfo(filePath)).Directory.Create() Before writing to the file.
....Or, If ...
Left-pad printf with spaces
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If you want the word "Hello" to print in a column that's 40 characters wide, with spaces padding the left, use the following.
char *ptr = "Hello";
printf("%40s\n", ptr);
That will give you 35 spaces, then the word "Hello". This is how you format stuff when you know how wide you ...
LINQ Ring: Any() vs Contains() for Huge Collections
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CarenRose
1,1221010 silver badges1818 bronze badges
answered Dec 14 '10 at 23:14
Etienne de MartelEtienne de Martel
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Find what filetype is loaded in vim
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answered May 6 '10 at 7:55
hobbshobbs
175k1515 gold badges175175 silver badges260260 bronze badges
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How to check if element has any children in Javascript?
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or the length property of childNodes:
if (element.childNodes.length > 0) { // Or just `if (element.childNodes.length)`
// It has at least one
}
If you only want to know about child elements (as opposed to text nodes, attribute nodes, etc.) on all modern browsers (and IE8 — in fact, eve...
Is there a timeout for idle PostgreSQL connections?
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edited Jan 20 '19 at 17:31
Hugo Leao
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answered Nov 6 '1...
Do C# Timers elapse on a separate thread?
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answered Sep 16 '09 at 22:43
JorenJoren
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